{"title":"融资融券交易与价格效率:信息量还是调价速度?","authors":"Dayong Lv, Wenfeng Wu","doi":"10.1111/acfi.12403","DOIUrl":null,"url":null,"abstract":"The literature offers contradictory views on the effect of margin‐trading activities on price efficiency. Based on data from a Chinese margin‐trading pilot programme in 2010, we separate price efficiency into information content and price‐adjustment speed and investigate the effect of margin‐trading activity on price efficiency. We find that after adding to the eligible list, pilot stocks experience a decrease in information content, but an increase in price‐adjustment speed. Furthermore, increased margin‐buying activities are associated with lower information content, but faster price adjustment. Our results reconcile the debate over the effect of margin trading on price efficiency.","PeriodicalId":23644,"journal":{"name":"Wiley-Blackwell: Journal of Business Finance & Accounting","volume":"73 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2018-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":"{\"title\":\"Margin Trading and Price Efficiency: Information Content or Price‐Adjustment Speed?\",\"authors\":\"Dayong Lv, Wenfeng Wu\",\"doi\":\"10.1111/acfi.12403\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The literature offers contradictory views on the effect of margin‐trading activities on price efficiency. Based on data from a Chinese margin‐trading pilot programme in 2010, we separate price efficiency into information content and price‐adjustment speed and investigate the effect of margin‐trading activity on price efficiency. We find that after adding to the eligible list, pilot stocks experience a decrease in information content, but an increase in price‐adjustment speed. Furthermore, increased margin‐buying activities are associated with lower information content, but faster price adjustment. Our results reconcile the debate over the effect of margin trading on price efficiency.\",\"PeriodicalId\":23644,\"journal\":{\"name\":\"Wiley-Blackwell: Journal of Business Finance & Accounting\",\"volume\":\"73 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-09-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"8\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Wiley-Blackwell: Journal of Business Finance & Accounting\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1111/acfi.12403\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Wiley-Blackwell: Journal of Business Finance & Accounting","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1111/acfi.12403","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Margin Trading and Price Efficiency: Information Content or Price‐Adjustment Speed?
The literature offers contradictory views on the effect of margin‐trading activities on price efficiency. Based on data from a Chinese margin‐trading pilot programme in 2010, we separate price efficiency into information content and price‐adjustment speed and investigate the effect of margin‐trading activity on price efficiency. We find that after adding to the eligible list, pilot stocks experience a decrease in information content, but an increase in price‐adjustment speed. Furthermore, increased margin‐buying activities are associated with lower information content, but faster price adjustment. Our results reconcile the debate over the effect of margin trading on price efficiency.
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